Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 2 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/28/2013   22:41:32   (   0.02,-135.33) (  -0.84,-139.06)  424.73                80
 03/01/2013   22:20:09   (   0.02,-135.34) (   0.23,-134.54)   92.32                80
 03/04/2013   10:23:15   (  -0.02,-135.42) (  -0.04,-135.28)   15.48                80
 03/06/2013   22:29:10   (   0.01,-135.37) (  -0.12,-136.06)   78.97                80
 03/07/2013   22:07:47   (   0.01,-135.37) (   0.89,-131.54)  437.21                80
 03/09/2013   10:29:36   (  -0.00,-135.43) (   0.31,-136.81)  157.36                80
 03/10/2013   10:10:52   (  -0.00,-135.43) (  -0.71,-132.28)  358.67                80
 03/11/2013   22:35:30   (   0.00,-135.37) (  -0.52,-137.58)  252.56                80
 03/12/2013   22:14:06   (   0.01,-135.37) (   0.50,-133.05)  263.23                80